GATE Naval Architecture and Marine Engineering Syllabus 2022: Here candidates can download the GATE 2022 Syllabus for Naval Architecture and Marine Engineering in PDF files. The syllabus for Naval Architecture and Marine Engineering includes 5 broad sections. There are further topics and subtopics under these sections. There will be total of 65 questions in the exam, out of which 55 questions will be based on the subject Naval Architecture and Marine Engineering. The rest 10 questions will be based on General Aptitude. The syllabus for all GATE subjects is published on the website of GATE 2022. For Naval Architecture and Marine Engineering, candidates can check this page.
GATE 2022 Syllabus for Naval Architecture and Marine Engineering (NM)
The syllabus for Naval Architecture and Marine Engineering (NM), GATE 2022 includes five sections with various topics under them. These sections include Engineering Mathematics, Applied Mechanics and Structures, Fluid Mechanics and Marine Hydrodynamics, Naval Architecture and Ocean Engineering, Thermodynamics and Marine Engineering.
Section 1: Engineering Mathematics: Determinants and matrices, Systems of linear equations, Eigenvalues and eigenvectors. Functions, gradient, divergence, curl, chain rules, partial derivatives, directional derivatives, definite and indefinite integrals, line surface and volume integrals, theorems of Stokes, Gauss and Green. Linear, non-linear, first and higher order ordinary and partial differential equations, separation of variables. Laplace transformation, analytical functions of complex variables, Fourier series, numerical methods for differentiation and integration, complex analysis, probability and statistics.
Section 2: Applied Mechanics and Structures
Engineering Mechanics: Free-body diagrams and equilibrium; trusses and frames; virtual work; kinematics and dynamics of particles and rigid bodies in plane motion; impulse and momentum (linear and angular) and energy formulations.
Mechanics of Materials: Stress and strain, elastic constants, Poisson’s ratio; Mohr’s circle for plane stress and plane strain; shear force and bending moment diagrams; bending and shear stresses; torsion; Euler’s theory of columns; energy methods; theories and failure, material testing methods. Vibrations: Free and forced vibration of damped and undamped systems, single and multi DOF systems.
Machine Design: Design for static and dynamic loading; Design of machine elements such as shafts, gears, rolling and sliding contact bearings; Joining technics such as bolting, riveting and welding.
Section 3: Fluid Mechanics and Marine Hydrodynamics
Fluid Mechanics: Fluid properties; fluid statics, stability of floating bodies; Conservation laws: Mass, momentum and energy (Integral and differential form); Dimensional analysis and dynamic similarity; sources, sinks, doublets, line vortex and their superposition; Stoke’s integral theorem. Generalised Bernoulli’s equation, sources, sinks, dipole, Flow with circulation, potential flow with rotational symmetry, hydrodynamical lift, Kutta-Joukowski theorem. Vortex motion- Fundamental concepts, vortex analogy to Biot-Savart’s law, straight parallel vortex filaments, vortex sheets. Viscous flowNavier-Stokes equations, Couette flow, Plane poiseuille flow. Equation of continuity, Euler‘s equation, Bernoulli‘s equation, Viscous flow of incompressible fluids, elementary turbulent flow, boundary layer, flow through pipes.
Boundary layer theory- Prandtl’s boundary layer equations, criterion for separation, Blasius solution, Skin friction, displacement thickness, momentum thickness, Turbulent boundary layer, Boundary layer control. Airfoils- Lift, drag, circulation, pressure distribution-theory of thin aerofoils, wings of infinite and finite span, circulation distribution, Cavitation.
Vorticity and Kelvin’s theorem, Potential flow theory, Sources, Sinks and Doublets, hydrodynamic forces in potential flow, D’Alembert’s paradox, added-mass, slender-body theory, hydrodynamic model testing, scaling laws, application of potential theory to surface waves, energy transport, wave/body forces, linearised theory of lifting surfaces.
Section 4: Naval Architecture and Ocean Engineering
Ship geometry and physical fundamentals – Archimedes’ principle, buoyancy and weight of ship, laws of flotation, heel and trim, stable and unstable equilibrium of ships, importance of streamlined hull shape, ship main particulars, hydrostatic calculations,
Stability and trim of Ships: Statical stability at small angles of heel, Inclining experiment. Shift of centre of gravity due to addition or removal of mass, transverse movement of mass and effect, Free surface effect, Effect of suspended mass, Stability at large angles of heel, angle of loll, curves of statical stability, dynamical stability, Probabilistic and deterministic Damage Stability Different Characteristic curves of dynamic stability. Floodable length calculations and curves. Loss of stability due to grounding, docking stability.
Resistance & Propulsion: Components of ship resistance, form factor, hull roughness, model testing and ship resistance prediction methods, tank wall effects, determination of ship resistance different series test results, resistance of advanced vehicles, appendage and added resistance. Geometry of screw propeller, propeller theories, hull-propeller interactions, different propulsive efficiency definitions. Propeller cavitation and effects. Propeller design and series. Open water and selfpropulsion model tests. Different types of propellers and their working principles. Propeller material, strength and manufacturing.Unconventional propellers
Ship Manoeuvring and Motions: Ship path keeping and changing, equations of motion, linearised equations and control fixed stability indexes, model tests. Stability and control in the horizontal and vertical planes – definitive manoeuvres and sea trials. Rudder hydrodynamics, design and operation. Influence of propeller, hull, appendages etc. on rudder performance. Experimental methods for the determination of hydrodynamic derivatives.
Ocean waves – regular, irregular, trochoidal. Wave spectrum, encounter frequency. Types of ship motions, coupled and non-coupled motions, equations of motion. Dynamic effects of ship motion in seaway. Different ship motion stabilisers – passive and active. Different numerical and experimental methods to determine ship motions – strip theory, BEM, FEM. Seakeeping features of highperformance marine vehicles.
Ship Structures & Strength: Shipbuilding materials, joining techniques, ship structural and framing systems – bottom, side, deck, bulkhead, end structures, and structural connections. Primary and secondary structural members, superstructure, hatch covers, machinery foundations, cargo handling systems and support structures.
Loads acting on ships in seaway, longitudinal and transverse strength considerations and estimation methods. Strength of hull girder, stiffened plate analysis, torsion of hull girder, deformation and stresses, local strength analysis; Reliability analysis and ultimate strength of hull girder, structural vibrations, fatigue and fracture. Physical Oceanography:
Physical properties of seawater, Different types of ocean waves – tides and wind waves, and their importance. Offshore Structures: Fixed offshore platforms – Jackets, Gravity platforms; Floating platforms – semi-submersibles, jack-ups, TLPs, FPSOs; Mooring, station keeping. Port and Harbour Engineering: Ports and Harbours, Port structures – Jetties, Dolphins, Liquid berths, Dredging, Navigation.
Section 5: Thermodynamics and Marine Engineering:
Thermodynamics: First law of thermodynamics – Closed system undergoing a cycle; closed system undergoing a change of state; Internal energy of a system; Expansion work; Process using ideal gas – constant pressure, constant volume, isothermal; adiabatic and polytropic process -work done and heat added in different process; First law applied to one – dimensional steady flow process, flow energy, steady flow energy equation (ID). Second law of Thermodynamics – Different statements; Reversible and irreversible process; Corollaries of second law – Absolute temperature scale; Carnot cycle – Carnot engine, refrigerator and heat pump. Clausius inequality and definition of entropy, change of entropy of an ideal gas; Gas power cycles and I.C.Engines; Gas power cycles: Carnot cycle, Brayton cycle, Erricson cycle, Sterling cycle etc.; Air standard cycles- Otto- Diesel, Dual and Joule cycle; Evaluation of thermal efficiency and mean effective pressure; Internal Combustion engine – Classification of I.C. engines -Principle of operation of spark Ignition and Compression Ignition engines both two stroke and four stroke; Stages of combustion in S.I. and C.I. engines; Knocking and detonation-factors controlling knock and detonation, methods of preventing Knocking and detonation; Refrigeration – principle of operation of Simple vapour compression system, Comparison with vapour compression systems; Air conditioning principles – Sensible heating and cooling, Humidification and dehumidification, Cooling and humidification, Cooling and dehumidification- Heating and humidification, Heating and dehumidification, Adiabatic mixing of air streams –cooling and heating load calculation.
Marine Diesel Engines: General engine principles, Low speed and medium speed diesel engines, Two and Four stroke engines, Scavenging and turbocharging, Fuel oil system, Lubricating oil systems, cooling systems, torque and power measurement, Starting air systems and reversing systems, controls and safety devices, Couplings and Gearboxes, Specific Fuel Consumption. Waste heat recovery system, MARPOL regulations and Energy Efficiency Design Index (EEDI), Ship Energy Efficiency Management Plan (SEEMP).
Marine Steam Turbines: Types of turbines, compounding, reheat, turbine construction, rotors, blades, casing, Gland sealing, diaphragms, nozzles, bearings etc. Lubrication systems, expansion arrangements, Gearings. Marine gas turbines – fundamentals of G.T, Structure of gas turbines, gearing, operational features, controls, combined cycles. Nuclear propulsion –physical principles of the operation of nuclear reactors – use of nuclear propulsion on seagoing vessels, Electrical Propulsion,
Marine Boilers: Types – fire tube, water tube boilers, Package boilers, Cochran Boilers, Composite boilers, steam to steam generators, double evaporation boilers, exhaust gas heat exchangers, auxiliary steam plant systems, exhaust gas boilers, composite boilers. Boiler mounting, combustion, feed system, feedwater treatment.
Engine Dynamics: Torsional vibration of engine and shafting, axial shaft vibration, critical speeds, engine rating, rating corrections, trial tests etc. Relationship of engine to the propeller classification society rules on engine construction, Engine room arrangement. Automation of ship propulsion plants, Maintenance requirements and reliability of propulsion plants.
Marine Auxiliary Machinery & Systems: Different types of pumps and piping systems in ships – hot water, drinking water, cooling water and seawater, fuel oil systems, lubricating oil system filters, coolers, centrifuges, purifiers and clarifiers, bilge and ballast systems, sewage disposal, oily water separator, air compressors, boilers, heat exchangers, waste heat recovery systems; Heat, ventilation and air conditioning systems; Dech machinery and cargo handling systems; Propulsions and steering gear systems.
GATE 2022 General Aptitude Syllabus
The syllabus for this section remains the same for all the subject papers in GATE 2022. The exam pattern and the marking scheme is also the same. There will be 10 questions asked from General Aptitude section. From theses total questions, 5 will be of 1 mark each and the other 5 will be of 2 marks each.
You can check the syllabus for the General Aptitude below.
Verbal Aptitude: Basic English grammar: tenses, articles, adjectives, prepositions, conjunctions, verb-noun agreement, and other parts of speech Basic vocabulary: words, idioms, and phrases in context Reading and comprehension Narrative sequencing.
Quantitative Aptitude Data interpretation: data graphs (bar graphs, pie charts, and other graphs representing data), 2- and 3-dimensional plots, maps, and tables Numerical computation and estimation: ratios, percentages, powers, exponents and logarithms, permutations and combinations, and series Mensuration and geometry Elementary statistics and probability.
Analytical Aptitude Logic: deduction and induction, Analogy, Numerical relations and reasoning.
Spatial Aptitude: Transformation of shapes: translation, rotation, scaling, mirroring, assembling, and grouping Paper folding, cutting, and patterns in 2 and 3 dimensions.
GATE 2022 Naval Architecture and Marine Engineering Exam Pattern
Check out the GATE 2022 Naval Architecture and Marine Engineering Exam Pattern from below:
Exam Mode: Online, Computer Based Test
Duration: 3 hours
Types of questions: MCQs and NAT
Name of the sections: General Aptitude, Naval Architecture and Marine Engineering Subject-based
No of questions: 65 questions
Total marks: 100 marks
Negative marking: NO negative marking for MSQ & NAT.
|Type of question||Negative marking for wrong answer||Marking for correct answer|
|MCQs||⅓ for 1 mark questions⅔ for 2 marks questions||1 or 2 marks|
|NATs||No negative marking||1 or 2 marks|
How to Prepare for GATE Naval Architecture and Marine Engineering ?
Your preparation depends on your strategy. If it is not well thought then you might lose marks in the exam. Your strategy should tackle your preparation in such a way that you are able to cover all the topics. Your strategy should also divide topics from easy to difficult, less to more weightage, or less to more important. Then prepare for subjects according to your comfort. The last month should be kept for revision. Candidates can look for the tips that we have mentioned below for their preparation.
Candidates must go through the syllabus thoroughly. They should be familiar with each topic in the syllabus. Divide the topics and prepare them accordingly. You should also go through the exam pattern and the marking scheme of the exam. Through the exam pattern, you will know what sections you have to prepare for. All three – the exam pattern, marking scheme and the syllabus are important in the preparation of the GATE 2022 exam and you should know them well.
The understanding of basic concepts is really important. You should have concept clarity in all the topics. This will help you in preparing better for the exam. Don’t move on to any other topic unless you are through with the topics you have been preparing. Understand them well and keep practicing them simultaneously. If you gain concept clarity you will be able to solve even the difficult questions which will make it easier for you to score in the exam.
You must make it a habit to make notes during your preparation. Notes should be made for every single topic in your GATE syllabus. The point of making the notes is to understand the topic first and then write it by hand. If you have understood the concept, only then will you be able to create notes. This technique helps in memorizing the topics well. Also, these notes will come in handy when you are revising the entire syllabus.
Your preparation should be done through solving as many question papers as you can. Start with your weekly and monthly mock tests. It will help you in keeping track of your weekly and monthly progress. As you near the last two months, start taking full-length mocks. Also, solve at least 10-15 last years’ question papers. This will help you in getting familiar with the trend of the questions that have been followed over the past few years.
As you start getting near the last month, start revising the syllabus. Take the help of the notes that you made during the preparation. Revision is an important step or you will forget what you have learned so far. Also, do daily revision, this way you will remember better.
FAQs on GATE 2022 Syllabus for Naval Architecture and Marine Engineering
Ans: Candidates can check the GATE 2022 Syllabus for Naval Architecture and Marine Engineering from this page or through official website, which is gate.iitkgp.ac.in.
Ans: GATE 2022 will be conducted for 29 papers.
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